Simple script to collect the info from the top enumeration tools, unify all the results in a same file, import the data to Findomain and include it in the monitoring process while saving to database.

findomain_integration.sh

#!/usr/bin/env bash
# Simple script to collect the info from the top enumeration tools, unify all the results in a same file, import the data to Findomain and include it in the monitoring process while saving to database.
# Usage:
# ./findomain_integration.sh domains_file findomain_config_file - see https://www.github.com/Edu4rdSHL/findomain/tree/master/config_examples
domains_file="$1"
config_file="$2"
total_file="all_external_subdomains.txt"

external_sources() {
    local amass_file="amass_output.txt"
    local sublist3r_file="sublist3r_output.txt"
    local assetfinder_file="assetfinder_output.txt"
    local subfinder_file="subfinder_output.txt"
    local domain="$1"
    touch "$amass_file" "$sublist3r_file" "$assetfinder_file" "$subfinder_file"

    amass enum --passive -d "$domain" -o "$amass_file" >/dev/null &
    sublist3r -d "$domain" -o "$sublist3r_file" >/dev/null &
    assetfinder -subs-only "$domain" > "$assetfinder_file" &
    subfinder -silent -d "$domain" -o "$subfinder_file" >/dev/null &
    wait
    cat "$amass_file" "$sublist3r_file" "$assetfinder_file" "$subfinder_file" > "$total_file"
    rm -f "$amass_file" "$sublist3r_file" "$assetfinder_file" "$subfinder_file"
}

while IFS= read -r domain; do
	if [ -n "$domain" ]; then
		fixed_domain=${domain//$'\r'/}
    	external_sources "$fixed_domain"
		findomain -t "$fixed_domain" --import-subdomains "$total_file" -o -c "$config_file" -m -i -q
        rm -f "$total_file"
    fi
done < "$domains_file"